STEEL/REINFORCED CONCRETE SPAN Russian patent published in 1995 - IPC

FIELD: civil engineering, bridge building. SUBSTANCE: steel/reinforced concrete span has steel beams 1 joint to reinforced plates 2, having crosswise and lengthwise fins. Line 3 of joining the fins with steel beams is coincide to center of gravity of cross sections of the span. The span has separate blocks generating its length. The blocks are attached to one another using dry glue seams 4 in the area of reinforced plates 2, and using bolted and bolt-and-weld joints 5 in the area of steel beams 1, with blocks having steel ends in the area of zero bending momentum. The blocks are connected to one another using bolted and bolt-and-weld joints. Cantilever sections 8 of frame/cantilever (cantilever/beam) span and oversupports sections of one-part span are provided with steel orthotropic plate of the road portion with walls facing down. The walls form steel beams 1, and blocks are composed of steel and reinforced plates the walls and fins of which facing one another are joint to one another using joining members. Road portion of the sections is made of reinforced concrete. EFFECT: simplified installation process at the expense of prefabrication of steel/reinforced concrete blocks followed by joining them in the coarse of installation using bolt-and-weld joints, and dry (glue) seams without pressing them over by reinforcement. 2 cl, 6 dwg